Unless a person is familiar with all the different makes and models disabling one {disengaging the drive} takes guess work. Jazzy Chairs have a lever on the rear & a Permobil has the lever locate on the right hand side.
Yea understanding what a motorized wheelchair can do I can see how he could corner two officers. If he penned them by going frontward he would be well within stabbing rage.
The only advantage the officers could ever gain would have been if the could have possibly approached from the back which would not allow him to have harmed them.
From the history it sounded like he needed to be in a facility where there were several orderlies 24/7 there to assist. I've seen a 80 year old 4'10" woman with a cane give about 6 CNA's and Orderlies a good fight.
There's good cops, there's bad cops, and there is the factor that in the mid 1970's patients who needed to be in full staff facilities were turned loose on the street or in less staffed group homes. That so called human rights act done in the name of so called patients rights has caused a lot of patients with mental issues where they become a danger to others to be killed. The Cops do not usually have benefit of a persons mental illness history.
Brian Claunch
Actually, there is a picture of the amputee. The wheelchair appears to be in a "typical push type wheelchair" based on the image.